Shockey told the Giantshe would accept the veteran-minimum salary of $925,000, a source familiar with the situation told The Star-Ledger, but even his most loyal supporters within the building "resisted the idea of his return," according to the newspaper.

"Go get a bucket of rocks and start throwing them at your glass house," he tweeted back at Toomer.

The Giants reached terms on a one-year, $2.5 million contract with former Dallas Cowboys tight end Martellus Bennett, a league source told NFL Network insider Jason La Canfora on Wednesday. The team remains thin at the position after Jake Ballard and Travis Beckum both tore their anterior cruciate ligaments during Super Bowl XLVI.

Shockey had a tumultuous tenure with the Giants from 2002 to 2007 before spending the next three seasons with the New Orleans Saints. He caught 37 passes for 455 yards with four touchdowns as a member of the Panthers in 2011, his first season in Carolina.